PLEASE HELP i suck at math

What are the coordinates of the image of A(2, 5) after it is rotated
180° clockwise about the origin?

Answer:

D

21√2/2

C

C

C

Step-by-step explanation:

For all problems, the ratios of the lengths of the sides are:

30-60-90 triangle 1 : √3 : 2

45-45-90 triangle 1 : √2 : √2

Problem 3:

30-60-90 triangle at left

Hypotenuse = 11

Short leg = 11/2

Long leg = 11/2 × √3

45-45-90 triangle at right

x = 11/2 × √3 × √2 = 11√6/2

Answer: D

Problem 4:

30-60-90 triangle at top

Hypotenuse = 7√3

Short leg = 7√3/2

Long leg = 7√3/2 × √3 = 7 × 3/2 = 21/2

45-45-90 triangle at right

x = 21/2 × √2 = 21√2/2

Answer: 21√2/2

Problem 7:

30-60-90 triangle

Long leg = 4√3

Short leg = y = 4√2/2 = 2√2

Answer: C.

Problem 6:

30-60-90 triangle at left

Hypotenuse = 12√6

Short leg = 12√6/2 = 6√6

Long leg = 6√6 × √3 = 6√2√3√3 = 18√2

45-45-90 triangle at right

x = 18√2/√2 = 18

Answer: C.

Problem 8:

45-45-90 triangle

Hypotenuse = 2

Leg = y = 2/√2 = 2√2/(√2√2) = √2

Answer: C.

Answer:

the answer is A I think it will help u

Answer:

When you combine -14 -9and3

than you actually get -20

Sample size required is 333, 42, 97 and 33,285, respectively using  confidence level and different parameters of standard deviation.

To estimate a population mean to within 40 units with 99% confidence and a population standard deviation of 200, the sample size required can be calculated using the formula

n = (Zα/2)² * (σ²) / (E²)

where Zα/2 is the z-score corresponding to the desired level of confidence (99% in this case), σ is the population standard deviation, and E is the desired margin of error (40 units).

Plugging in the values, we get

n = (2.576)² * (200)²/ (40)²

n = 332.84

Therefore, a sample size of at least 333 should be used.

If the population standard deviation is changed to 50, the same formula can be used with the new value of σ:

n = (2.576)² * (50)²/ (40)²

n = 41.68

Therefore, a sample size of at least 42 should be used.

If using a 95% confidence level, the z-score changes to 1.96

n = (1.96)² * (200)²/ (40)²

n = 96.04

Therefore, a sample size of at least 97 should be used.

To estimate the population mean to within 10 units, the margin of error (E) is changed to 10 in the formula, and the sample size is recalculated

n = (2.576)² * (200)² / (10)²

n = 33,284

Therefore, a sample size of at least 33,285 should be used.

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The required sample size should be 166 to estimate the population mean within 40 units with 99% confidence, given a population standard deviation of 200.

To determine the required sample size for estimating a population mean with a given level of confidence and margin of error, we can use the formula:

n = (Z * σ / E)^2

Where:

n = Sample size

Z = Z-score corresponding to the desired confidence level (in this case, 99% confidence corresponds to a Z-score of 2.576)

σ = Population standard deviation

E = Margin of error (in this case, 40 units)

Substituting the given values into the formula, we have:

n = (2.576 * 200 / 40)^2

Simplifying further:

n = (12.88)^2

n ≈ 165.6544

Since the sample size must be a whole number, we round up the value to the nearest integer:

n = 166

Therefore, the required sample size should be 166 to estimate the population mean within 40 units with 99% confidence, given a population standard deviation of 200.

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Answer:

The probability is 0.5 tiles will be green

Step-by-step explanation:

Hope this helps

Answer:12

Step-by-step explanation:

Answer:

your answer should be 8 according to the bearing given

Answer:

\(A = 8100mi^{2}\)

Step-by-step explanation:

Are of a triangle: \(A = \frac{hb}{2}\), where A is the area, h is height and b is base.

\(A = \frac{hb}{2}\\A = \frac{(180)(90)}{2}\\A = \frac{16200}{2}\\A = 8100mi^{2}\)

The aproxiate area of NH is 8100mi^2

Answer:

8, 0

Step-by-step explanation:

Therefore, The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true. If the p-value is less than the significance level, reject the null hypothesis; otherwise, fail to reject it.

To find the p-value from the t statistic on TI-84, you will need to perform a hypothesis test. Here are the steps:1. Enter your data into the calculator and choose the appropriate test.2. Calculate the t statistic by dividing the sample mean by the standard error.3. Determine the degrees of freedom. This is n-1 for a one-sample t-test or n1+n2-2 for a two-sample t-test. 4. Use the t-distribution table to find the critical value for your test.5. Calculate the p-value using the t-distribution function on the calculator.6. Compare the p-value to the significance level (usually 0.05) to determine whether to reject or fail to reject the null hypothesis.7.

Therefore, The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true. If the p-value is less than the significance level, reject the null hypothesis; otherwise, fail to reject it.

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The formula for the number of bacteria at time t is given by N = 10,000e^(0.0173t).

The formula for the number of bacteria at time t can be found using the exponential growth formula. The formula for exponential growth is given by;N = N0ertWhere;N is the number of bacteria after t minutes.N0 is the initial number of bacteria.r is the growth rate.t is the time interval.

To find the formula for the number of bacteria at time t, substitute the given values into the exponential growth formula.N0 = 10,000r = ln2/40 = 0.0173 (since the number of bacteria doubles every 40 minutes, the growth rate is equal to the natural log of 2 divided by 40.)t = t minutesN = 10,000e^(0.0173t)

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Basically, this is a domain. Well, a condition.

It's saying that any value that you subsitute in x , which is then multiplied by 4 and added 6, must ALWAYS be greater than -14, but lesser than 18.

Addition and subtraction, multiplication, Multiplication and division have inverse relationships. So, option A and D are correct.

The operations that have inverse relationships are addition and subtraction, and multiplication and division.

Addition and subtraction are inverse operations because adding a number and then subtracting the same number results in the original value. For example, 5 + 3 = 8, and 8 - 3 = 5.

Multiplication and division are also inverse operations because multiplying a number by a certain value and then dividing the same value results in the original value. For example, 4 × 2 = 8, and 8 ÷ 2 = 4.

Therefore, the correct answers are addition and subtraction, and multiplication and division.

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The complete question is:

What operations have inverse relationships? Select all that apply.

A) Addition and subtraction

B) Addition and multiplication

C) Subtraction and division

D) Multiplication and division

Answer:

8 bracelets

Step-by-step explanation:

Each time when we we cut the ribbon for making a ribbon, the length will be reduced. So, repeated subtraction is division.

To find the number of bracelets, divide the total length of the ribbon by the length required for making a bracelet.

Fraction division:

Use KCF method

Step1: Keep the first fraction

Step2: Change division to multiplication

Step3: Flip the second fraction

Number of bracelets = total length ÷ length required for making a bracelet.

                                  \(= 5\dfrac{1}{3} \div \dfrac{2}{3}\\\\= \dfrac{16}{3} \div \dfrac{2}{3}\\\\= \dfrac{16}{3}*\dfrac{3}{2}\\\\= 8\)

The confidence interval at a 90% is 29.533 ≤ μ ≤ 40.467

Given that

mean = 35

standard deviation = 15

We compute the confidence interval as follows:

μ =¯ˣ± ME

Where:

To calculate the margin of error, we will use the t-distribution since the sample is very small n<30. Thus, our margin of error will be calculated as:

ME = t ×\(\frac{s}{\sqrt{n} }\)

Where:

t = is the t-score at the 90% confidence level

degree of freedom df = 24 -1 =23

s = 15 is the standard deviation and,

n =24 is the sample size.

From the t-distribution tables, we will read the values of t at a critical value \(\alpha\) = 0.10, and the degree of freedom is 23. This will give t= 1.714.

Thus, the margin of error is:

ME = 1.714 ×\(\frac{15}{\sqrt{23} }\)

ME = 1.714 ×3.19

ME = 5.467

the confidence interval for the population mean is equal to:

μ = 35 ± 5.467

29.533 ≤ μ ≤ 40.467

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9514 1404 393

Answer:

  £37.50

Step-by-step explanation:

See https://brainly.com/question/23501345 for a detailed explanation of the working. Using the numbers here, we have ...

  tins = (((4)(2.8)(4.5) -(2)(0.7))/12)/2 ≈ 2.042 . . . . more than 2 tins

For the 3 tins Aisha needs, she will pay (2.5)(£15) = £37.50.

Step-by-step explanation:

have sad me the answer the you yong answer mo mali kaya mali din ang ipapalit sayo

Answer:

2 batches

Step-by-step explanation:

if you can make it with 1/4 chips, then if you have 2/4 then you can make 2 batches because its double.

Answer: 5

Explanation: 12(3) - 3(1/3)/4(3)-5

                   = 36-1/12-5

                   = 35/7

                   = 5

Answer:

I believe number 9 is the middle answer

Step-by-step explanation:

please correct me if I'm wrong

Answer:

1092 is divisible into 1, 7, or 1092.

Step-by-step explanation:

Step-by-step explanation:

1092 / 1 = 1092

1092 / 2 = 546

1092 / 3 = 364

1092 / 4 = 273

1092 / 6 = 182

1092 / 7 = 156

1092 / 12 = 91

1092 / 13 = 84

1092 / 14 = 78

1092 / 21 = 52

1092 / 26 = 42

1092 / 28 = 39

1092 / 39 = 28

1092 / 42 = 26

1092 / 52 = 21

1092 / 78 = 14

1092 / 84 = 13

1092 / 91 = 12

1092 / 156 = 7

1092 / 182 = 6

1092 / 273 = 4

1092 / 364 = 3

1092 / 546 = 2

1092 / 1092 = 1

Answer: 12

Step-by-step explanation:

The number of jobs that he could he do if the cost was $four thousand, one hundred twenty five will be 25.

A word problem in mathematics simply refers to a question that is written as a sentence or in some cases more than one sentence which requires an individual to use his or her mathematics knowledge to solve the real life scenario given.

When a man does job at the rate of $165 per job, the number of jobs that he could he do if the cost was $four thousand, one hundred twenty five will be:

= Amount / Rate

= $4125 / $165

= 25

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A man does job at the rate of $165 per job. How many jobs could he do if the cost was $four thousand, one hundred twenty five?

Answer:

the answer is C

Step-by-step explanation:

GLAD TO HELP!!

Answer:

C

Step-by-step explanation:

not 100 % sure but here you go!!

A random sampling method could be used to find the percentage of students in your grade who eat five servings of fruit and vegetables each day.

This method involves selecting a random sample of students from the entire population of your grade and surveying them about their eating habits.

In other word, its involves randomly selecting a subset of students from the entire grade population and collecting data on their eating habits. By selecting students at random, the sample is more likely to be representative of the entire grade. This cam provide accurate insights into the percentage of students meeting the desired dietary recommendation.

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Answer:

\(\huge\boxed{\sf NO.}\)

Step-by-step explanation:

If the pair forms proportion, the cross multiplication of them should be equal to each other. Let's check it out!

\(\displaystyle \frac{3}{4} = \frac{5}{7} \\\\Cross \ Multiply\\\\3 \times 7 = 5 \times 4\\\\\boxed{35 \neq 20}\\\\\)

Hence, the given pair doesn't form a proportion.

\(\rule[225]{225}{2}\)

Hope this helped!

Answer:

it clearly says 35 points not 70 your scamming us

Step-by-step explanation:

The missing parts of each quadrilateral and their types are:

i. x = 85^o

 Type of quadrilateral; Trapezoid

ii. x = 57^o

  Type of quadrilateral; Trapezoid

A quadrilateral is a given plane shape or figure on a 2 dimensional plane which is bounded by four straight sides. It has a series of types which are; square, rhombus, rectangle, trapezium etc. Each type of quadrilateral has individual differentiating properties.

In the given question, we have;

1. The sum of the internal angles of a quadrilateral is 360^o. So that:

109^o + 96^o + 70^o + x^o = 360^o

275 + x = 360

x = 360 - 275

  = 85

x = 85^o

The missing part is 85^o. And the type of quadrilateral is a trapezoid.

2. The sum of the internal angles of a quadrilateral is 360^o. So that:

94^o + 87^o + x^o + 122^o = 360^o

303 + x = 360

x = 360 - 303

  = 57

x = 57^o

The missing part is 57^o. And the type of quadrilateral is a trapezoid.

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Answer:

0.75

Step-by-step explanation:

1. To change 3/4 into a decimal, you have to divide 3 by 4.

2. (Check out the image below to see how to divide 3 by 4.)

Answer:

3/4 is expressed as 0.75 in the decimal form.

Step-by-step explanation:

Fractions and decimals are two ways to represent the same numbers. A decimal number can be defined as a number whose whole number part and fractional part is separated by a decimal point. A fraction is represented as a numerical value that is defined as a part of a whole.

To convert any fraction to decimal form, we just need to divide the numerator by the denominator.

Here the fraction is 3/4 which means we need to divide: 3 ÷ 4.

* Use the attatched images for steps*

Therefore, 3/4 = 0.75.

Thus, 3/4 is expressed as 0.75 in the decimal form.

Millimeters can be converted into centimeters by dividing the value by 10. The solution has been obtained by using the unit conversion.

What is unit conversion?

A unit conversion is used to express the same property in a different unit of measurement. For instance, you could use minutes instead of hours to represent time or feet instead of miles to indicate distance. It commonly occurs when measurements are provided in one system of units, such as feet, but are required in a different system, such as chains.

We are required to convert millimeters to centimeters.

We know that 1 centimeter = 10 millimeters

So, for converting millimeters to centimeters, we need to divide the value by 10.

Hence, millimeters can be converted into centimeters by dividing the value by 10.

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